Come for the money, leave for the frustration. - Senior Development Manager PayPal Employee Review

Technological dead-end. Their entire code base is so convoluted that it is nearly unmanageable. This leads to a complete paralysis for development. In addition, their release methodology is completely a mess as it relies on a "big-bang" release with all components being updated at the same time. This is done supposedly as "risk management", but in reality it is simply because the various components are so tightly bound to each other that they must be updated in lock-step.